Integrated sewage pumping station combined with pipe jacking open caisson

Abstract

An integrated sewage pump station combined with a pipe jacking caisson, comprising a sewage pipe jacking caisson and an integrated sewage pump station, the bottom of the sewage pipe jacking caisson is provided with a bottom sealing and a bottom plate; the inside of the sewage pipe jacking caisson is divided into a collecting pool and an operation room by an inner partition wall, the integrated sewage pump station is installed in the operation room, and the bottom plate of the integrated sewage pump station is integrally cast with the bottom plate of the caisson; a sewage inlet pipeline is communicated with the collecting pool, and a communicating pipeline is arranged between the bottom of the collecting pool and the bottom of the integrated sewage pump station. The utility model makes full use of the inside space of the pipe jacking caisson, and integrates the integrated pump station and the collecting pool in the caisson, so that the construction operation can be carried out under the adverse conditions of high underground water level, poor soil condition and limited construction operation space; and the utility model has the advantages of reducing the occupied area and saving land.

Description

Technical Field

[0001] This utility model relates to the field of underground building / structure construction technology, specifically to an integrated sewage pumping station constructed in conjunction with a pipe jacking caisson. Background Technology

[0002] Traditional sewage pumping stations mainly consist of an inlet chamber, a screen chamber, a forebay, a pump house, and a management building. They occupy a large area, require extensive landscaping, have above-ground structures, and incur high construction costs, requiring personnel on duty. With continuous equipment improvements and the development of automation and remote monitoring, integrated prefabricated pumping stations can be used to replace traditional pumping stations in certain situations.

[0003] Integrated sewage pumping stations are buried deep underground. When the geological conditions are good and the surrounding environment allows, slope excavation is the preferred method. Sewage pumping station inlet pipes are generally buried at a greater depth. When the geological conditions are good and the surrounding environment allows, slope excavation is usually also used. When slope excavation is not feasible, pipe jacking is generally used.

[0004] In a certain drainage project, the upstream gravity flow sewage pipeline needs to cross a river to discharge into the downstream main sewage channel. Normally, pipe jacking is used to cross the river, but this would result in the sewage pipeline being lower in elevation than the downstream main sewage channel, necessitating the installation of a sewage lifting pump station. After comprehensively considering land use, construction period, and project costs, an integrated prefabricated pump station was chosen to lift the sewage from the river to the downstream main sewage channel. Figure 1 As shown.

[0005] Figure 1 The proposed solution addresses the issue of sewage pipeline elevation, but the integrated sewage pumping station is located near a river and municipal road, where the geological conditions are poor, the site cannot support large-scale and deep excavation, and it lacks the conditions for slope excavation; this has brought considerable difficulties to the construction. Utility Model Content

[0006] To address the aforementioned technical problems, this technical solution provides an integrated sewage pumping station that is constructed in conjunction with a pipe jacking caisson. It directly utilizes the internal space of the pipe jacking caisson, concentrating the integrated pumping station and water collection tank within the caisson, eliminating the need for slope excavation and simplifying construction; thus effectively solving the above-mentioned problems.

[0007] This utility model is achieved through the following technical solution: An integrated sewage pumping station, constructed in conjunction with a pipe jacking caisson, includes a sewage pipe jacking caisson and an integrated sewage pumping station. The bottom of the sewage pipe jacking caisson is equipped with a bottom seal and a bottom slab. The interior of the sewage pipe jacking caisson is divided into a collection tank and an operating room by an internal partition wall. The integrated sewage pumping station is installed in the operating room, and the bottom slab of the integrated sewage pumping station is cast integrally with the bottom slab of the caisson. The sewage inlet pipe is connected to the collection tank, and a connecting pipe is provided between the bottom of the collection tank and the bottom of the integrated sewage pumping station.

[0008] Furthermore, the inner diameter of the sewage jacking well is greater than or equal to twice the inner diameter of the integrated sewage pumping station.

[0009] Furthermore, the wall thickness of the sewage pipe jacking caisson is greater than or equal to 0.60m, and it is made of C30 concrete cast in place. The cover plate of the sewage pipe jacking caisson is made of C30 concrete prefabricated.

[0010] Furthermore, the cylinder of the integrated pump station is made of resin and glass fiber wound together to form a fiberglass cylinder, and its height is less than that of the sewage jacking well.

[0011] Furthermore, the inner partition wall is a secondary pouring wall. The sewage pipe jacking caisson is lowered to the design elevation, the bottom of the caisson is sealed and the base plate is poured. After the pipe jacking operation is completed, the inner partition wall is poured on the base plate.

[0012] Furthermore, the inner partition wall is in the shape of "〔", with both ends extending through the centerline to the inner wall of the caisson at the edge of the operating room, and the middle part protruding towards the water collection pool.

[0013] Furthermore, in the aforementioned operating room, all gaps except for those in the integrated sewage pump station section are filled with a filling material to ensure they are compacted.

[0014] Furthermore, the filling material includes concrete poured at the bottom of the void portion and a medium-coarse sand layer placed on the upper side of the poured concrete; the height of the poured concrete must be higher than the height set for the connecting pipe, so that the poured concrete encloses the connecting pipe.

[0015] Furthermore, a water valve is installed in the location of the connecting pipe within the integrated sewage pumping station, and the water valve is connected to an operating switch located on the ground via a connector.

[0016] Furthermore, the water pump of the integrated sewage pumping station is located at the bottom and is connected to the sewage outlet pipe through a water pipe. Beneficial effects

[0017] The integrated sewage pumping station proposed in this utility model, which is constructed in conjunction with a pipe jacking caisson, has the following advantages compared with the prior art: (1) This technical solution combines the integrated sewage pumping station with the pipe jacking caisson, making full use of the internal space of the pipe jacking caisson. The integrated pumping station and the collection tank are built in the caisson. On the one hand, it reduces the land area and saves land. On the other hand, under unfavorable conditions such as high groundwater level, poor soil conditions and limited construction space, the pipe jacking caisson structure is used again, which reduces the operation of supporting and excavating again when constructing the collection tank and the integrated pumping station, facilitates construction operations, shortens the construction cycle and reduces project investment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an integrated prefabricated pumping station in the prior art.

[0019] Figure 2 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 3 This is a top view of the present invention.

[0021] The markings in the attached diagram are as follows: 1-Jack caisson, 11-Bottom sealing, 12-Caisson bottom plate, 13-Cover plate, 2-Integrated sewage pumping station, 21-Pumping station bottom plate, 3-Internal partition wall, 4-Collection tank, 5-Operating room, 51-Medium-coarse sand layer, 52-Pouring concrete, 6-Sewage inlet pipe, 7-Connecting pipe, 71-Water valve, 8-Connecting parts, 9-Operating switch, 10-Sewage outlet pipe. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. The described embodiments are only some embodiments of the present utility model, and not all embodiments. Various modifications and improvements to the technical solutions of the present utility model made by those skilled in the art without departing from the design concept of the present utility model should fall within the protection scope of the present utility model. Example 1

[0023] like Figure 2 and Figure 3 As shown, an integrated sewage pumping station constructed in conjunction with a pipe jacking caisson includes a sewage pipe jacking caisson 1 and an integrated sewage pumping station 2. The bottom of the sewage pipe jacking caisson 1 is provided with a bottom seal 11 and a bottom plate 12. The interior of the sewage pipe jacking caisson 1 is divided into a collection tank 4 and an operating room 5 by an internal partition wall 3. The integrated sewage pumping station 2 is installed in the operating room 3, and the bottom plate 21 of the integrated sewage pumping station 2 is cast integrally with the bottom plate 12 of the caisson 1. The sewage inlet pipe 6 is connected to the collection tank 4, and the bottom of the collection tank 4 is connected to the bottom of the integrated sewage pumping station 2 by a connecting pipe 7.

[0024] The sewage jacking caisson 1 has an inner diameter of 6.50m, a depth of about 10.30m, and a wall thickness of 0.60m. It is made of C30 concrete cast in place, while the cover plate 13 is made of C30 concrete precast.

[0025] The integrated pump station has an inner diameter of 3.00m and a height of 8.50m. It is made of resin and glass fiber wound together to form a fiberglass cylinder.

[0026] The inner partition wall 3 is a secondary pouring wall. The sewage jacking pipe caisson 1 is sunk to the design elevation. The bottom of the caisson 1 is sealed 11 and the base plate 12 is poured. After the pipe jacking operation is completed, the inner partition wall 3 is poured on the base plate 12.

[0027] like Figure 3 As shown, the inner partition wall 3 is in the shape of "〔", with both ends extending through the center line to the inner wall of the well at the edge of the operating room 5, and the middle part protruding towards the water collection pool 4.

[0028] In the operating room 5, all gaps except for those in the integrated sewage pump station 2 are filled with a filling material to ensure compaction. The filling material includes concrete 52 poured at the bottom of the gaps and a medium-coarse sand layer 51 placed on top of the poured concrete 52. The height of the poured concrete 52 must be higher than the height of the connecting pipe 7, so that the poured concrete 52 completely encloses the connecting pipe 7.

[0029] A water valve 71 is installed in the connecting pipe 7 within the integrated sewage pumping station 2. The water valve 71 is connected to an operating switch 9 located on the ground via a connector 8. The water pump of the integrated sewage pumping station 2 is located at the bottom and is connected to the sewage outlet pipe 10 via a water pipe.

[0030] The structure and construction method of the pipe jacking caisson 1, the sewage inlet pipe 6, the integrated sewage pumping station 2, and the sewage outlet pipe 10 all use conventional existing technologies, and this embodiment does not improve upon them. Further explanation is omitted here.

[0031] During implementation, the pipe jacking caisson is first lowered to the design elevation, the bottom of the caisson is sealed and the bottom slab is poured, and the bottom slab of the integrated sewage pump station is poured into the caisson bottom slab. After the pipe jacking operation is completed, the inner partition wall inside the caisson is poured, the integrated sewage pump station and caisson cover are installed, and the gap in the operating room is backfilled to the design ground elevation, and the operation is completed.

Claims

1. An integrated sewage pumping station constructed in conjunction with a pipe jacking caisson, comprising a sewage pipe jacking caisson (1) and an integrated sewage pumping station (2), wherein the bottom of the sewage pipe jacking caisson (1) is provided with a bottom seal (11) and a caisson bottom plate (12); characterized in that: The interior of the sewage jacking caisson (1) is divided into a collection pool (4) and an operating room (5) by an inner partition wall (3). The integrated sewage pump station (2) is installed in the operating room (5), and the bottom plate (21) of the integrated sewage pump station (2) is cast as one piece with the bottom plate (12) of the caisson. The sewage inlet pipe (6) is connected to the collection pool (4), and a connecting pipe (7) is provided between the bottom of the collection pool (4) and the bottom of the integrated sewage pump station (2).

2. The integrated sewage pumping station constructed in conjunction with a pipe jacking caisson according to claim 1, characterized in that: The inner diameter of the sewage jacking well (1) is greater than or equal to twice the inner diameter of the integrated sewage pumping station (2).

3. The integrated sewage pumping station constructed in conjunction with a pipe jacking caisson according to claim 1, characterized in that: The wall thickness of the sewage jacking caisson (1) is greater than or equal to 0.60m and is made of C30 concrete cast in place. The cover plate (13) of the sewage jacking caisson (1) is made of C30 concrete precast.

4. The integrated sewage pumping station constructed in conjunction with a pipe jacking caisson according to claim 1, characterized in that: The integrated sewage pump station (2) is made of resin and glass fiber wound into a fiberglass cylinder, and its height is less than that of the sewage jacking well (1).

5. An integrated sewage pumping station constructed in conjunction with a pipe jacking caisson according to claim 1, characterized in that: The inner partition wall (3) is a secondary pouring wall. The sewage jacking caisson (1) is sunk to the design elevation. The bottom of the caisson is sealed and the bottom plate is poured. After the pipe jacking operation is completed, the inner partition wall (3) is poured on the bottom plate.

6. An integrated sewage pumping station constructed in conjunction with a pipe jacking caisson according to claim 1, characterized in that: The inner partition wall (3) is in the shape of "〔" with both ends extending through the center line to the inner wall of the caisson at the edge of the operating room, and the middle part protrudes towards the water collection pool (4).

7. An integrated sewage pumping station constructed in conjunction with a pipe jacking caisson according to claim 1, characterized in that: In the operating room (5), except for the gaps in the integrated sewage pump station (2), the gaps are filled with filler material to make them dense.

8. An integrated sewage pumping station constructed in conjunction with a pipe jacking caisson according to claim 7, characterized in that: The filling material includes concrete poured at the bottom of the void and a medium-coarse sand layer (51) on the upper side of the poured concrete (52); the height of the poured concrete (52) must be higher than the height set by the connecting pipe (7) so that the poured concrete (52) encloses the connecting pipe (7).

9. An integrated sewage pumping station constructed in conjunction with a pipe jacking caisson according to claim 1, characterized in that: The connecting pipe (7) is equipped with a water valve (71) located inside the integrated sewage pump station (2). The water valve (71) is connected to the operating switch (9) located on the ground via a connector (8).

10. An integrated sewage pumping station constructed in conjunction with a pipe jacking caisson according to claim 1, characterized in that: The pump of the integrated sewage pumping station (2) is located at the bottom and is connected to the sewage outlet pipe (10) through a water pipe.

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